knock together β to strike a sounding blow with the fist, knuckles, or anything hard, especially on a door, window, or the like, as in seeking admittance, calling attention, or giving a signal: to knock on the door before entering.
put up β planned beforehand in a secret or crafty manner: a put-up job.
superstruct β to erect upon a foundation or on top of another building or part
throw together β to propel or cast in any way, especially to project or propel from the hand by a sudden forward motion or straightening of the arm and wrist: to throw a ball.
throw up β to propel or cast in any way, especially to project or propel from the hand by a sudden forward motion or straightening of the arm and wrist: to throw a ball.
adjective jerrybuilt
poor β having little or no money, goods, or other means of support: a poor family living on welfare.
shoddy β of poor quality or inferior workmanship: a shoddy bookcase.
flimsy β without material strength or solidity: a flimsy fabric; a flimsy structure.
slapdash β in a hasty, haphazard manner: He assembled the motor slapdash.
primitive β being the first or earliest of the kind or in existence, especially in an early age of the world: primitive forms of life.
provisional β providing or serving for the time being only; existing only until permanently or properly replaced; temporary: a provisional government.
unrefined β not refined; not purified, as substances: unrefined metal.